2024 年 58 巻 4 号 p. 118-124
Ice cores, in which aerosols are preserved without changes in quality, are a tool for reconstructing past aerosol compositions and concentrations as well as the atmospheric environment associated with aerosols. In areas with cold temperature and high snowfall, aerosols stored near the snow surface are covered by new snow and stored in the snowpack before they undergo post-depositional effects such as volatilization into the atmosphere and photoreactions, so ice cores collected there have high temporal resolution and can reconstruct aerosols that are less affected by post-depositional effect. In this review paper, we present the results of research on aerosols obtained from ice cores collected in the southeastern part of the Greenland ice sheet, the region with the highest snowfall, and show future prospects for ice core research collected in highly recharged areas.
